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Author | Topic: Truth is Relative | |||||||||||||||||||
Parasomnium Member Posts: 2228 Joined: |
purpledawn writes: My thoughts are concerning what occurs in nature without manipulation by man. Grinding up the wood and adding an alkaline or acidic solution is something that man has done. That's irrelevant. Even without human interference, Brazilin will find itself in an alkaline environment, or an acidic one, or a neutral one. Whatever the environment, the question remains what the intrinsic colour of Brazilin is. That is, if there is such a property as 'intrinsic colour'. It is my contention that there isn't.
Color seems to have a purpose in nature, that's why I feel it is incorrect to say that "color" does not exist. Again, I'm not saying that colour doesn't exist, all I'm saying is that colour is a perception, and as such doesn't exist outside the mind of those who perceive it. If redness was an objective property of things, should it not then be possible to tell a person who has never seen red what it's like to experience seeing red, without showing them? Sure, you can tell them that light of certain wavelengths hits their retina, and that neurons start to fire, and that the visual cortex is activated. But can you convey the redness of red? Can you make them see red just by telling them? You can't. Of course there is something out there that triggers perceptions in a perceiver, but since the same outside thing can trigger quite different perceptions in different animals, you cannot equate the outside thing with just one of those perceptions and ignore the rest. The only logical conclusion is that no one perception is equal to the outside thing. What you should have said, in my opinion, is that having a certain chemical composition seems to have a purpose in nature, because that chemical composition triggers certain responses that seem useful. "Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science." - Charles Darwin. Did you know that most of the time your computer is doing nothing? What if you could make it do something really useful? Like helping scientists understand diseases? Your computer could even be instrumental in finding a cure for HIV/AIDS. Wouldn't that be something? If you agree, then join World Community Grid now and download a simple, free tool that lets you and your computer do your share in helping humanity. After all, you are part of it, so why not take part in it?
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Parasomnium Member Posts: 2228 Joined: |
Rrhain writes: Personally, I do think that color exists. "Color" is simply a way to describe various wavelengths of light. We have imposed arbitrary and artificial divisions upon what separates "red" from "orange," but that's just a convenience for us to be able to communicate about the actual wavelength. You're right in that the concept of colour is a convenient shorthand to talk about wavelengths of light. Such a convenient shorthand it is that even if you don't know you're actually talking about wavelengths, you can still have a meaningful conversation about it. But to me that's a trivial aspect of colour. What really interests me is the essence of colour: that which first comes to mind when someone mentions the word 'red'. "Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science." - Charles Darwin. Did you know that most of the time your computer is doing nothing? What if you could make it do something really useful? Like helping scientists understand diseases? Your computer could even be instrumental in finding a cure for HIV/AIDS. Wouldn't that be something? If you agree, then join World Community Grid now and download a simple, free tool that lets you and your computer do your share in helping humanity. After all, you are part of it, so why not take part in it?
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Minnemooseus Member Posts: 3971 From: Duluth, Minnesota, U.S. (West end of Lake Superior) Joined: Member Rating: 7.4 |
What really interests me is the essence of colour: that which first comes to mind when someone mentions the word 'red'. I think the interpretation of a spoken 'red' would be highly context dependent. When I think of 'red' outside of any conscious context, I associate it with heat. Of course, in the modern U.S., there's a strong association with Republicans. Moose Edited by Minnemooseus, : Change ID.
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Parasomnium Member Posts: 2228 Joined: |
The first thing I get when I hear "red" is a vague version of the picture I posted upstream in this thread. That's what I'm talking about, that's what I mean by the "essence of colour".
"Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science." - Charles Darwin. Did you know that most of the time your computer is doing nothing? What if you could make it do something really useful? Like helping scientists understand diseases? Your computer could even be instrumental in finding a cure for HIV/AIDS. Wouldn't that be something? If you agree, then join World Community Grid now and download a simple, free tool that lets you and your computer do your share in helping humanity. After all, you are part of it, so why not take part in it?
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Brad McFall Member (Idle past 5282 days) Posts: 3428 From: Ithaca,NY, USA Joined: |
Yes yes but this does not help me distinguish the real object and some minimized finitness discussed by Russell . I take it by this post you are saying that there has been not change of attention of yours in this thread so far?
quote:page 199 of Marsh listed in my first quote in this thread by Bertrand Russell. If we talk about Wright’s shifting balance theory and what the surface was meant to present, I believe I can show better than colour how there has to be something finite and real AND SIMPLE correlated definitvely, and hence with color as seems agasint your view here, regardless of the purpose put to it. By reframing Darwin’s diagram
What Russell was referring to “ of finite extent” was this;
quote:same book page 114 Edited by Brad McFall, : added darwin diagram
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